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What was Johannes Kepler known for?

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The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
The Editors of Encyclopaedia Britannica

Johannes Kepler is best known for his three laws of planetary motion. These laws are:

  • Planets move in orbits shaped like an ellipse.
  • A line between a planet and the Sun covers equal areas in equal times.
  • How long a planet takes to go around the Sun is related to the radius of the planet’s orbit.